| 摘要 |
<p>PURPOSE: To obtain a molding having both of impact resistance and gasoline permeability by providing a polyamide resin layer and combining, for example, a layer high in impact resistance and a layer good in gasoline permeability to mold them. CONSTITUTION: A multilayered hollow molding constituted of two or more layers and produced by rotary molding has at least a layer (A) containing 80wt.% or more of a polyamide resin, a layer (B) containing at least 30-100wt.% of a thermoplastic resin other than the polyamide resin and an elastomer other than the polyamide resin in total, a layer (C) containing a polyamide/polyol block copolymer obtained from 60-100wt.% of lactams and 0-40wt.% of polyol or polyamide and a layer (D) containing a polyamide/polyol block copolymer obtained from 10-40wt.% of lactams and 60-90wt.% of polyol. As a result, the hollow molding may have a structure consisting of three or more layers.</p> |
